测量渐晕的差压板测量渐晕扩散板

TE255设计用于测量数码相机的阴影/渐晕。

它是一个非常精确的牛奶玻璃板，与积分球或灯箱结合使用。

The TE255 is designed to measure shading/vignetting of a digital camera.

It is a very precise milk glas plate which is used in combination with an integration sphere or a light box.